A canon is a piece of music in which two or more voices or instruments sing or play the same music starting at different times.
A round is a type of canon, but in a round each voice, when it finishes, can start at the beginning again so that the piece can go “round and round”.

Song: Peace Canon

Soft Kitty

Examples of Rounds:
Frere Jacques:
A canon is a piece of music in which two or more voices (or instrumental parts) sing or play the same music starting at different times. A round is a type of canon, but in a round each voice, when it finishes, can start at the beginning again so that the piece can go “round and round”.

Row Row Row your boat